每次我添加一些东西，每次都有不同的金额来验证购物车

Question

i am new to both php and worldpress and i am doing a validation code for a Ecommerce site and i managed to do this

function so_validate_add_cart_item( $passed, $product_id, $quantity, 
$variation_id = '', $variations= '' ) 
{
if ( 1 != 3 ){
 $passed = false;
 wc_add_notice( __( 'You can not do that', 'textdomain' ), 'error' );
}
 return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 
'so_validate_add_cart_item', 10, 5 );

the thing is, this is just a generic thing(it doesnt even have a cart amount in it, its just a failure to test) but my system has a step by step "create your own pack" and each step has a different amount of items that you have to select, so i need to know how i do a check with different conditions in everystep, meaning how do i tell the site to do something in one page and something in another

Answer 1

If you want to check for all cart items details including quantity of each item you can access cart data from global $woocommerce

function so_validate_add_cart_item( $passed, $product_id, $quantity, 
$variation_id = '', $variations= '' ) 
{
    global $woocommerce;
    $cart_items = $woocommerce->cart->get_cart();
    //enter code here
    if ( 1 != 3 ){
      $passed = false;
      wc_add_notice( __( 'You can not do that', 'textdomain' ), 'error' );
    }
    return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 
'so_validate_add_cart_item', 10, 5 );

hope this helps.